AT89C51RC2-RLTIL Atmel, AT89C51RC2-RLTIL Datasheet - Page 56
AT89C51RC2-RLTIL
Manufacturer Part Number
AT89C51RC2-RLTIL
Description
8-bit Microcontrollers - MCU 80C31 w/4k
Manufacturer
Atmel
Datasheet
1.AT89C51RC2-RLTIL.pdf
(127 pages)
Specifications of AT89C51RC2-RLTIL
Product Category
8-bit Microcontrollers - MCU
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
60 MHz
Program Memory Size
32 KB
Data Ram Size
1280 B
On-chip Adc
No
Operating Supply Voltage
2.7 V to 5.5 V
Package / Case
VQFP-44
Mounting Style
SMD/SMT
Interface Type
SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
3
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C51RC2-RLTIL
Manufacturer:
ATMEL
Quantity:
5 000
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Registers
56
AT89C51RB2/RC2
A low-priority interrupt can be interrupted by a high-priority interrupt, but not by another
low-priority interrupt. A high-priority interrupt can’t be interrupted by any other interrupt
source.
Table 43. Priority Level Bit Values
If two interrupt requests of different priority levels are received simultaneously, the
request of higher-priority level is serviced. If interrupt requests of the same priority level
are received simultaneously, an internal polling sequence determines which request is
serviced. Thus within each priority level there is a second priority structure determined
by the polling sequence.
IPH. x
0
0
1
1
IPL. x
0
1
0
1
Interrupt Level Priority
3 (Highest)
0 (Lowest)
1
2
4180E–8051–10/06
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